14. Hi‘o Ram Cnaan, Van Evans, e Daniel W. Curtis, Called to Serve: The Prosocial Behavior of Active Latter-day Saints (University of Pennsylvania School of Social Policy and Practice, 2012) ; « Mormon Volunteerism Highlighted in New Study » (16 no mati 2012), http://www.mormonnewsroom.org/article/mormon-volunteerism-report; Mormons in America : Certain in Their Beliefs, Uncertain of Their Place in Society (Pew Forum on Religion and Public Life, 12 no tenuare 2012), 43 ; Robert D. Putnam e David E. Campbell, American Grace: How Religion Divides and Unites Us (2010), 444–54.